Police are appealing to trace a significant witness following a stabbing in Eltham.

A man was left fighting for his life after he was stabbed in Eltham as police tasered the suspect.

Detective Chief Inspector Jamie Piscopo said: "When officers arrived at the scene in Well Hall Parade, witnesses told how a woman said to them that she had been threatened by the suspect.

"This woman is described as black, tall, aged approximately 30 and was wearing a long, floral patterned cardigan. We need to trace this woman as she may have vital evidence that could assist this investigation."

Police and London Ambulance were called to the scene around 7pm on August 11.

The 49-year-old victim was suffering from serious stab injuries and he was taken to a central London hospital where his condition is described by police as “critical but stable”.

A 38-year-old suspect was arrested after he was tasered by police in Dunvegan Road, right next to Well Hall Road.

He was taken to hospital as a precaution but was discharged into police custody on Monday, August 14 August. He remains in custody at an east London police station.